An escarpment (or scarp) is a type of cliff, formed by the movement of a geologic fault, or a landslide. Most cliffs have some form of scree slope at their base. In arid areas or under high cliffs, these are generally exposed jumbles of fallen rock. In areas of higher moisture, a soil slope may obscure the talus.
Primary Muscles. The primary muscles the plank works are the erector spinae, the rectus abdomimus and the transverse abdominus. The erector spinae is a large muscle that runs up the length of the back. It surrounds your spine and allows you to straighten your back and rotate side to side.he plank is one of the simplest and most effective abdominal exercises. In its most basic form, you brace yourself at the top of a pushup while contracting your core muscles. You can do multiple variations of the plank to create more challenge and target different parts of the core.
BENEFITS. Plank helps you to build strength in your core, upper and lower body so its a good full body work out. You do not need any equipment to perform this exercise all you need is a bit of space, and it really helps improve flexibility by stretching muscles and will improve posture if performed regularly.OW TO DO A PLANK. 1  Start by getting into a press up position. 2  Bend your elbows and rest your weight ono your forearms and not on your hands. 3  Your body should form a straight line from shoulders to ankles. 4  Engage your core by sucking your belly button into your spine.